ParticleSystemRenderer.enableGPUInstancing

说明

在支持它的平台上启用 GPU 实例化。

要利用 GPU 实例化来渲染粒子系统，该粒子必须使用含有程序化实例化 Pass（也就是说，它包含 #pragma instancing_options procedural 指令）的着色器。

using UnityEngine;
using System.Collections;
public class ExampleClass : MonoBehaviour
{
    private ParticleSystem ps;
    private ParticleSystemRenderer psr;
    private bool enableGPUInstancing = true;

    void Start()
    {
        ps = GetComponent<ParticleSystem>();
        psr = GetComponent<ParticleSystemRenderer>();

        psr.renderMode = ParticleSystemRenderMode.Mesh;
        psr.SetMeshes(new Mesh[] { Resources.GetBuiltinResource<Mesh>("Capsule.fbx"), Resources.GetBuiltinResource<Mesh>("Cube.fbx"), Resources.GetBuiltinResource<Mesh>("Sphere.fbx") });

        psr.sharedMaterial = new Material(Shader.Find("Particles/Standard Surface"));
    }

    void Update()
    {
        psr.enableGPUInstancing = enableGPUInstancing;
    }

    void OnGUI()
    {
        enableGPUInstancing = GUI.Toggle(new Rect(25, 45, 200, 30), enableGPUInstancing, "Enabled");
    }
}